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Question:

Check if (0,2) is a solution of the equation x - 2y = 4 or not.

Solution:

(i) (0,2)
The given equation is x - 2y = 4.
L.H.S = x - 2y
Putting the value x = 0 and y = 2 to verify the solution (0,2):
= 0 - 2 × 2 = 0 - 4 = -4
L.H.S ≠ R.H.S
So, (0,2) is not a solution of the equation x - 2y = 4.